I like the ideas for your mods. I'm actually thinking of other mods for my personal needs. I'm working on data logging capabilities so that I can analyze data on my PC. I'm installing an I2C eeprom on my IDuino board to store the data.

I realize this is blasphemy here but I also autocross my car (Honda Del Sol) so I also want to log my lap times so this will serve double duty. The last reason I want to log speed, etc. is for when my son borrows the car so that I can make sure he isn't getting stupid with it.